For the most part, I would never be too worried about a device catching fire. The biggest thing is it's usually going to be a single component failing thermally either due to a short circuit, overload or bad design. But most devices found in a circuit when they fail. This way don't usually get hot enough to start fires in surrounding areas as mostly the components next to the failed part are not going to be flammable at those temperatures. Usually the most common fires you see in PCs is that SATA connectors. And then given that most computers are still cases in glass, even though the connector may start on fire, it usually won't spread too far due to not much else being flammable next to it. At least you're given a bit of time. If it does fully catch fire, usually you're giving a bit of time to either put it out or get it out of the area.
Also, if a component fails due to overheating a lot of times that will just kill the device or the power and stop the thermal run away so it never actually gets hot enough to catch fire.
I've had a lot of devices that have killed themselves and mostly they'll release the magic smoke but that will be it. They won't continue the power. They won't continue the burn. They'll just die and make a big stink.
The only exceptions I would probably say are battery operated devices as those are known to be a little more flammable due to the lithium ion batteries.
When it comes to electrical fires, I believe most of the fires are usually caused by bad wiring in the walls using undersized wires and overloading them with things like space heaters. And given how I seen some places do their wiring. Yeah they can be fire hazards.
So far I've been running my server and server rack for about 10 years in my home using the same normal PC power supply on my storage device and it's been running 24/7 without issue. And if you think about it, they sometimes do say that leaving advice on is less prone to failure than turning it on and off as you're not cycling the power as much causing temperature the heat up and cool down.
Ps. I am on mobile and using voice to text so please ignore any weird formatting
For the most part, I would never be too worried about a device catching fire. The biggest thing is it's usually going to be a single component failing thermally either due to a short circuit, overload or bad design. But most devices found in a circuit when they fail. This way don't usually get hot enough to start fires in surrounding areas as mostly the components next to the failed part are not going to be flammable at those temperatures. Usually the most common fires you see in PCs is that SATA connectors. And then given that most computers are still cases in glass, even though the connector may start on fire, it usually won't spread too far due to not much else being flammable next to it. At least you're given a bit of time. If it does fully catch fire, usually you're giving a bit of time to either put it out or get it out of the area.
Also, if a component fails due to overheating a lot of times that will just kill the device or the power and stop the thermal run away so it never actually gets hot enough to catch fire.
I've had a lot of devices that have killed themselves and mostly they'll release the magic smoke but that will be it. They won't continue the power. They won't continue the burn. They'll just die and make a big stink.
The only exceptions I would probably say are battery operated devices as those are known to be a little more flammable due to the lithium ion batteries.
When it comes to electrical fires, I believe most of the fires are usually caused by bad wiring in the walls using undersized wires and overloading them with things like space heaters. And given how I seen some places do their wiring. Yeah they can be fire hazards.
So far I've been running my server and server rack for about 10 years in my home using the same normal PC power supply on my storage device and it's been running 24/7 without issue. And if you think about it, they sometimes do say that leaving advice on is less prone to failure than turning it on and off as you're not cycling the power as much causing temperature the heat up and cool down.
Ps. I am on mobile and using voice to text so please ignore any weird formatting